RFR: 8320530: has_resolved_ref_index flag not restored after resetting entry [v3]

[Matias Saavedra Silva]

> ResolvedMethodEntry::reset_entry() clears the fields in the structure and then restores the constant pool index and the resolved references index if it has one. Currently, the resolved references index is restored without restoring the has_resolved_reference flag used by the structure. 
> 
> This patch restored the flag with the resolved references index. Verified with tier 1-5 tests.

Matias Saavedra Silva has updated the pull request incrementally with one additional commit since the last revision:

  Corrections and gtest fix

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Changes:
  - all: https://git.openjdk.org/jdk/pull/16769/files
  - new: https://git.openjdk.org/jdk/pull/16769/files/273d82df..0b82817d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16769&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16769&range=01-02

  Stats: 32 lines in 3 files changed: 6 ins; 3 del; 23 mod
  Patch: https://git.openjdk.org/jdk/pull/16769.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16769/head:pull/16769

PR: https://git.openjdk.org/jdk/pull/16769